One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery

Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) be...

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Autores principales: Kaiqi Long, Han Han, Weirong Kang, Wen Lv, Lang Wang, Yufeng Wang, Liang Ge, Weiping Wang
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Lenguaje:EN
Publicado: BMC 2021
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Acceso en línea:https://doaj.org/article/9cb37ae1d4ba4b44be0e0a73dc318587
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spelling oai:doaj.org-article:9cb37ae1d4ba4b44be0e0a73dc3185872021-11-08T11:01:24ZOne-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery10.1186/s12951-021-01103-z1477-3155https://doaj.org/article/9cb37ae1d4ba4b44be0e0a73dc3185872021-11-01T00:00:00Zhttps://doi.org/10.1186/s12951-021-01103-zhttps://doaj.org/toc/1477-3155Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) between photosensitizer and photoresponsive group enables the use of long-wavelength light to activate short-wavelength light-responsive groups. However, such process requires oxygen-free environment to achieve efficient photolysis due to the oxygen quenching of triplet excited states. Results Herein, we report a strategy that uses red light to trigger disassembly of small-molecule nanoparticles by one-photon upconversion-like photolysis for cancer therapy. A photocleavable trigonal molecule, BTAEA, self-assembled into nanoparticles and enclosed photosensitizer, PtTPBP. Such nanoparticles protected TTET-based photolysis from oxygen quenching in normoxia aqueous solutions, resulting in efficient red light-triggered BTAEA cleavage, dissociation of nanoparticles and subsequent cargo release. With paclitaxel as the model drug, the red light-triggered drug release system demonstrated promising anti-tumor efficacy both in vitro and in vivo. Conclusions This study provides a practical reference for constructing photoresponsive nanocarriers based on the one-photon upconversion-like photolysis. Graphical AbstractKaiqi LongHan HanWeirong KangWen LvLang WangYufeng WangLiang GeWeiping WangBMCarticlePhotoresponsive drug deliverySelf-assemblyOne-photon upconversion-like photolysisCancer therapyThree-legged moleculesBiotechnologyTP248.13-248.65Medical technologyR855-855.5ENJournal of Nanobiotechnology, Vol 19, Iss 1, Pp 1-14 (2021)
institution DOAJ
collection DOAJ
language EN
topic Photoresponsive drug delivery
Self-assembly
One-photon upconversion-like photolysis
Cancer therapy
Three-legged molecules
Biotechnology
TP248.13-248.65
Medical technology
R855-855.5
spellingShingle Photoresponsive drug delivery
Self-assembly
One-photon upconversion-like photolysis
Cancer therapy
Three-legged molecules
Biotechnology
TP248.13-248.65
Medical technology
R855-855.5
Kaiqi Long
Han Han
Weirong Kang
Wen Lv
Lang Wang
Yufeng Wang
Liang Ge
Weiping Wang
One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
description Abstract Background Photoresponsive drug delivery can achieve spatiotemporal control of drug accumulation at desired sites. Long-wavelength light is preferable owing to its deep tissue penetration and low toxicity. One-photon upconversion-like photolysis via triplet–triplet energy transfer (TTET) between photosensitizer and photoresponsive group enables the use of long-wavelength light to activate short-wavelength light-responsive groups. However, such process requires oxygen-free environment to achieve efficient photolysis due to the oxygen quenching of triplet excited states. Results Herein, we report a strategy that uses red light to trigger disassembly of small-molecule nanoparticles by one-photon upconversion-like photolysis for cancer therapy. A photocleavable trigonal molecule, BTAEA, self-assembled into nanoparticles and enclosed photosensitizer, PtTPBP. Such nanoparticles protected TTET-based photolysis from oxygen quenching in normoxia aqueous solutions, resulting in efficient red light-triggered BTAEA cleavage, dissociation of nanoparticles and subsequent cargo release. With paclitaxel as the model drug, the red light-triggered drug release system demonstrated promising anti-tumor efficacy both in vitro and in vivo. Conclusions This study provides a practical reference for constructing photoresponsive nanocarriers based on the one-photon upconversion-like photolysis. Graphical Abstract
format article
author Kaiqi Long
Han Han
Weirong Kang
Wen Lv
Lang Wang
Yufeng Wang
Liang Ge
Weiping Wang
author_facet Kaiqi Long
Han Han
Weirong Kang
Wen Lv
Lang Wang
Yufeng Wang
Liang Ge
Weiping Wang
author_sort Kaiqi Long
title One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
title_short One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
title_full One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
title_fullStr One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
title_full_unstemmed One-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
title_sort one-photon red light-triggered disassembly of small-molecule nanoparticles for drug delivery
publisher BMC
publishDate 2021
url https://doaj.org/article/9cb37ae1d4ba4b44be0e0a73dc318587
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AT weirongkang onephotonredlighttriggereddisassemblyofsmallmoleculenanoparticlesfordrugdelivery
AT wenlv onephotonredlighttriggereddisassemblyofsmallmoleculenanoparticlesfordrugdelivery
AT langwang onephotonredlighttriggereddisassemblyofsmallmoleculenanoparticlesfordrugdelivery
AT yufengwang onephotonredlighttriggereddisassemblyofsmallmoleculenanoparticlesfordrugdelivery
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